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hydrogym.jaxfluids.utils.nozzle

NozzleGeometry Objects​

@dataclass(frozen=True, slots=True)
class NozzleGeometry()

Fixed nozzle geometry based on the publication Das et al. 2025 AIAA

area_ratio_inlet​

def area_ratio_inlet(dim: int) -> float

Computes the ratio of the inlet area to the throat area.

InjectorGeometry Objects​

@dataclass(frozen=True, slots=True)
class InjectorGeometry()

X​

position

IW​

width

N​

count

PressureRatios Objects​

@dataclass(frozen=True, slots=True)
class PressureRatios()

NPR​

nozzle pressure ratio

SPR​

secondary pressure ratio

compute_thrust​

def compute_thrust(
        primitives: Array, p_infty: float, apertures_x: Array,
        cell_centers: tuple[Array, ...],
        cell_sizes: tuple[Array, ...]) -> tuple[Array, Array, Array]

Computes the thrust of the nozzle.

F_x = mdot_e * u_e + (p_e - p_infty) * A_e F_y = mdot_e * v_e F_z = mdot_e * w_e